Home / 4,807.83-6,635.31-2,820.05

Finding the Fourth Proportional to 4,807.83, 6,635.31 and 2,820.05

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Solution

The fourth proportional to 4,807.83, 6,635.31 and 2,820.05 is: 3,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,807.83 : 6,635.31 = 2,820.05 : x
  2. Step 2: Convert to fraction form
    4,807.83/6,635.31 = 2,820.05/x
  3. Step 3: Cross multiply
    4,807.83x = 6,635.31 × 2,820.05
  4. Step 4: Simplify right side
    4,807.83x = 18,711,905.97
  5. Step 5: Solve for x
    x = 18,711,905.97/4,807.83
  6. Step 6: Final answer
    x = 3,891.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.